#include <bits/stdc++.h>
using namespace std;
int n, m, q;
const int N = 1010;
int s[N][N];

int main() {
	cin >> n >> m >> q;
	for (int i = 1; i <= n; ++i) {
		for (int j = 1; j <= m; ++j) {
			cin >> s[i][j];
			s[i][j] = s[i][j] + s[i - 1][j] + s[i][j - 1] - s[i - 1][j - 1];
		}
	}
	while (q--) {
		int x1, y1, x2, y2;
		cin >> x1 >> y1 >> x2 >> y2;
		cout << s[x2][y2] - s[x2][y1 - 1] - s[x1 - 1][y2] + s[x1 - 1][y1 - 1] << endl;
	}
	return 0;
}